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Minerals - Anapaite | TerraCollect

Mineral - Anapaite

AnapaiteCa₂Fe²⁺[PO₄]₂ · 4 H₂O

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Chemical Properties

Mineral Class

Phosphates

Toxicity

none

Formula

Ca₂Fe²⁺[PO₄]₂ · 4 H₂O

Unit Cell

a=6.45 b=6.82 c=5.90 α=102° β=104° γ=71° Z=1

Physical Properties

Hardness

3.5

Streak

white

Density

Normal (2-3,5)

Optical Properties

Color

green

Birefringence

0,047

Luster

Vitreous

Transparency

translucent,

transparent

Pleochroism

Geomineralogical Properties

Crystal System

triclinic

Point Group

Composition

Elements

Mass

P₂O₅

35.51

FeO

18.07

CaO

27.77

H₂O

18.47

Russia (Palache et al. 1952)

Map-Layer

Geological MapSatellite Map

Name and first discovery : Named after the type locality "Anapa" in Russia. Discovered in 1902.

Abbreviation : Anp

literature

Palache, C., Berman, H., & Frondel, C. (1952). Dana's system of mineralogy. Geologiska Föreningen i Stockholm Förhandlingar , 74 (2), 218-219.

Cleavage

Completely after {001}, indistinc after {010}

Fracture

Tenacity

Elastic-flexible

triclinic-pinacoidal - 1

Space Group

P1 (2)

Habit

spherical, rosette, tabular

Formation

Sedimentary, oxidation zone of oolitic iron ores, replaces organic structures (shells etc.)

Paragenesis

Twinning

Rarity

Rather rare

Synonyms

Anapaite, Tamanite